Mata is happy to see Chelsea focus on creative midfield additions.
"When you are playing more and more with your team-mates, you get more of a connection," said Mata.
"Players like Hazard and Oscar came last season and this summer there is De Bruyne and Schurrle. All we need is the connection.
"I'm really looking forward to starting the season with him, we're all really excited. Jose did a great job here a few years ago and I think we can do it again."
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